m...@freebsd.org wrote:
> I thought CTLFLAG_TUN was only used to provide a more useful error
> message when writing to a read-only sysctl? I think the CTLFLAG_TUN
> should not be here for a RW sysctl.
Yes, that's the only use for CTLFLAG_TUN _now_.
Perhaps in the future there could be other uses, such as a flag to sysctl to
list
names which are also tunables. Or some other creative use.
sysctl(9) says:
CTLFLAG_TUN Also declare a system tunable with the same name to ini‐
tialize this variable.
While the above is not true or very ambiguous at the very least, I still don't
see
any reason not to use the flag in this case.
--
Andriy Gapon
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